What I don't understand is how is it even constitutional in the US. Isn't it a warrant-less search? It's not like scanning content on a cloud. The cloud owns the device on which you store your data. But you own your mobile.
Which isn't true for Apple. Not too sure about Android. But everything you do on your Apple Devices, including its Hardware, Software and its Services, works more like Apple lend it to you for a price.
And as other mention, only the government and not a private company.